X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 22 Oct 2013 12:12:12 -0400 Message-ID: X-Original-Return-Path: Received: from mail-pa0-f46.google.com ([209.85.220.46] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6560044 for lml@lancaironline.net; Tue, 22 Oct 2013 12:02:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.46; envelope-from=pjdmiller@gmail.com Received: by mail-pa0-f46.google.com with SMTP id fa1so10048980pad.33 for ; Tue, 22 Oct 2013 09:02:10 -0700 (PDT) X-Received: by 10.69.2.129 with SMTP id bo1mr8972884pbd.144.1382457730197; Tue, 22 Oct 2013 09:02:10 -0700 (PDT) X-Original-Return-Path: Received: from [192.168.1.135] (S010620aa4b008706.cg.shawcable.net. [174.0.112.194]) by mx.google.com with ESMTPSA id lm2sm34482648pab.2.2013.10.22.09.02.08 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 22 Oct 2013 09:02:08 -0700 (PDT) From: Paul Miller Content-Type: multipart/alternative; boundary="Apple-Mail=_79B47778-E9FA-49D9-995E-C0478589D76C" X-Original-Message-Id: <9A454780-0A6D-4364-90B0-3302F13A98B3@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: [LML] Re: Hot TITs on X country leg. LIVP X-Original-Date: Tue, 22 Oct 2013 10:02:05 -0600 References: X-Original-To: "Lancair Mailing List" In-Reply-To: X-Mailer: Apple Mail (2.1508) --Apple-Mail=_79B47778-E9FA-49D9-995E-C0478589D76C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii When I did the high-power LOP check first time in the Legacy, I was = looking to diagnose a problem. Each mag "off" produced a fair amount of = roughness. Short version: changed out all 12 high-ohm champions for = incredibly cheap and efficient BG341 plugs. When performing the test = the second time, I could not feel the mag being shut down--night and day = difference. EGTS all rose nicely and the cabin was smooth. Running LOP = now I can easily lean out until power just drops off without the prior = roughness. The big pull is a non-event except for FF and temps. In = my case Champion plugs were the culprit, a cheap fix. Legacy IO550 (non-GAMI) On 2013-10-22, at 9:15 AM, Walter Atkinson = wrote: Colin: 1) the prop governor should hold the RPM steady. No change is the norm. 2) All EGTs should rise and stay steady if you are getting a good = in-flight mag check. If a plug is weak, that EGT will not be steady or = it may fall completely off. We recommend doing high power LOP mag checks on every flight. Walter Atkinson (225) 939-7508 --Apple-Mail=_79B47778-E9FA-49D9-995E-C0478589D76C Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii When = I did the high-power LOP check first time in the Legacy, I was looking = to diagnose a problem. Each mag "off" produced a fair amount of = roughness. Short version: changed out all 12 high-ohm champions = for incredibly cheap and efficient BG341 plugs. When performing = the test the second time, I could not feel the mag being shut = down--night and day difference. EGTS all rose nicely and the cabin = was smooth. Running LOP now I can easily lean out until power just = drops off without the prior roughness. The big pull is a non-event = except for FF and temps. In my case Champion plugs were the = culprit, a cheap fix.

Legacy IO550 = (non-GAMI)

On 2013-10-22, at 9:15 AM, Walter = Atkinson <walter@advancedpilot.com> = wrote:

Colin:

1) = the prop governor should hold the RPM steady. No change is the = norm.

2) All EGTs should rise and stay steady = if you are getting a good in-flight mag check. If a plug is weak, = that EGT will not be steady or it may fall completely = off.

We recommend doing high power LOP mag = checks on every flight.

Walter = Atkinson

<walter@advancedpilot.com><= /div>

(225) = 939-7508

<= /div>

= --Apple-Mail=_79B47778-E9FA-49D9-995E-C0478589D76C--